Please answer my question
asked Jun 21, 2016 in Word Problem Answers by Zandy

Your answer

Your name to display (optional):
Privacy: Your email address will only be used for sending these notifications.
Anti-spam verification:

To avoid this verification in future, please log in or register.

1 Answer

Let B=number of beads. B-(B/4+B/3)=30; B-(3/12+4/12)B=B-7B/12=5B/12=30; B=12*30/5=72.

One third of 72=72/3=24 beads are worth 120, so 72 are worth 3*120=360.

This answer assumes the question means 1/3 of the original number of beads and not a third of what remains.

If the question means a third of the remaining beads are used on the second day, we have a different problem:

B-B/4 on the first day leaves 3B/4 and a third of this is B/4. So the number of beads used on both days is B/4+B/4=B/2. So B-B/2=B/2=30 and B=60. A third of 60 beads is 20, so 20 beads cost 120 and 60 beads cost 3*120=360, same answer as before.

The answers are the same because of the way the cost is worked out. If a third of the beads cost 120, then 3 thirds will cost 360, no matter what. The cost of one bead will be different: in the first case 72 beads cost 360 so 1 bead costs 360/72=5. In the second case 60 beads cost 360 so 1 bead costs 360/60=6.

answered Jun 21, 2016 by Rod Top Rated User (486,860 points)
Welcome to, where students, teachers and math enthusiasts can ask and answer any math question. Get help and answers to any math problem including algebra, trigonometry, geometry, calculus, trigonometry, fractions, solving expression, simplifying expressions and more. Get answers to math questions. Help is always 100% free!
79,816 questions
83,632 answers
66,549 users